<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/index" target="abcd" method="post" enctype="multipart/form-data">
    <input type="file" name="abc" multiple >
    <input type="file" name="abce" multiple >
    <input type="submit" value="gooooooooooo">
</form>
<iframe src="" frameborder="0" name="abcd" style="width:100%;height:600px;"></iframe>
</body>
</html>